Resilient positioning device for windows.



J. B. GLOWAOKI. BESILIENT POSITIONING DEVICE FOR WINDOWS.

APPLIUATIOH FILED JULY 5, 1912.

1,065,234, Patented June 17-, 1913.

2 SHEETSPSHEET 1 J. B. GLOWAGKI.

RESILIENT POSITIONING DEVICE FOR WINDOWS.

APPLICATION FILED JULY 5, 1912.

1,065,234, Patented June 17, 1913.

2 SHEBT8BHEET Z. 5 5

TATE FATFLNT OFFICE.

JOHN B. GLOW'ACKI, OF CHICAGO, ILLINOIS.

RESILIENT POSITIONING DEVICE FOR I/VINDOWS.

LOGSES L To a whom it may concern:

Be it known that I, JOHN B. GLOWACKT, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Resilient Positioning Devices for Windows; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying draw ings, and to the numbers of reference marlted thereon, which form a part of this specification.

This invention relates to improvements in my prior application for patent for positioning devices for windows, Serial No. (359,930, filed Nov. 13, 1911.

This invention relates to resilient positioning devices for windows and more particularly to a device adapted to hold a window sash in adjusted position in its frame to prevent rattling.

It is an object of the invention to afford spring pressed friction rollers carried upon the sash and adapted to yieldingly bear against the jambs in the sash of the window frame in which the sash is supported, said friction rollers serving to hold the sash at all times true in the frame and acting to permit raising and lowering of the sash in the usual manner when stress sufficient to overcome the frictional resistance against the jamb is applied thereto.

It is also an important object of this invention to provide a positioning device for windows having a fusible member connected therewith adapted to fuse when heat is ap plied thereto, and thereby release the positioning device to permit the window to which it is attached to close automatically.

It is also an object of the invention to afford a spring construction whereby sufficient pressure is normally maintained against the friction members to hold the same with sufficient pressure against the amb to balance the weight of the sash.

It is also an object of the invention to prevent rattling of the sash in the frame.

It is finally an important object of this invention to provide a positioning device adapted for general use in connection with slidable sash and of such strong and dura- Specification of Letters Patent.

Application filed July 5, 1912.

Patented June 17,1913.

Serial No. 707,756.

ble construction as to practically eliminate the cost of repair or renewal.

The invention in a preferred form is here inafter more fully described.

In the drawings: Figure 1 is a front elevat-ion, partly broken away, of a window frame and sash illustrating the application of the device embodying my invention. Fig. 2 is a view in elevation of the positioning device illustrated in Fig. 1. Fig. 3 is an en larged fragmentary longitudinal section of a sash illustrating the assembling of the positioning device. Fig. i is an enlarged section taken on line H of Fig. 2. Fig. 5 is an enlarged fragmentary detail of one of the holding or friction members illustrating the manner in which the same is attached to the springs. Fig. 6 is a section taken on line G-6 of Fig. Fig. 7 is a view similar to Fig. 5 and illustrating a slightly modified construction of the holding member. Figs. 8 and 9 illustrate a slightly modified form of the wheel construction.

As shown in the drawings: 1, indicates the side rail of a sliding window sash and 2-, indicates the amb of the window frame. The sash of the frame may, of course, be constructed in the usual or any preferred manner. The side rail on each side of the sash is provided at its outer edge with a recess which may be constructed in any suitable manner by mortising or otherwise as shown in Fig. 1, in each side of the sash and near the middle of said stile or rail.

The positioning and holding device com prises a metallic back plate 3, adapted to fit closely in the recess in the sash, and affording upwardly and downwardly directed flanged attaching ends 4.

As shown clearly in Fig. 2, the strap curves slightly inward from said flanged attaching ends 4, and at a point on each side of the center of the same is bent outwardly to afford a raised portion 5.

6, indicates an apertured spacing member composed of relatively soft fusible metal and provided with flanged sides and ends, 7 and 8, respectively, adapted to rest upon the raised portion 5, of the strap 3.

9 indicates apertured webs, each of which is integral with the bottom and sides of the spacing member.

As shown, in Fig. 0 a plurality of leaf springs 10, ll and 12, having their upwardly and dowinvardly directed ends sprung or curved outwaully, are firmly secured in position upon the fusible spacing mcn'iber t3, and the rz ised portion 5, of the bacl; plate by means of bolts 13, which extend through the same and a spacing plate ll. -r fork or 'yol-Ie 15, is rigidly secured to each of the outrardly curved ends of the spring 12, and a friction wheel, comprising a metallic or other suitable peripherally grooved body portion to, having a resilient tire 17, thereon, is iournaled in each of said yol-res. The curvature of the leaf spring 12, at its end is such as to normally project said wheels into positive engagement with the jamb edge.

The construction illustrated in Fig. 7 is identical, with that shown in liig. 5, that in lion 0'? the wheel 1 and friction member 17, a star wheel 55, is journalod in the yolze 15, the points or lingers thereof at all times a tlording independent bearings against the jamb, and acting bracingly to resist rotation, this resistance, of course, being greatly augmented by the tension of the leaf spring 12, which serves to hold the star wheel in firm engagement with the jainb.

Figs. 8 and P illus'ate a modified wheel constrimtion in which a relatively small body portion 15), is used and a large friction rand 2t), surrounds the same to afford a tread adapted to bear firmly against the ianlb of the window or any other suitable guide.

The ope 'ation is as followu: After having firmly secured the device in its proper position in the recesses in each of the side rails of the lower sash. said lower sash may be raised and lowered at will. and said friction rollers serve to hold the sash at all times true in the f 'alne as well as prevent the rattling of the sash in said frame. The fusible member (3, which is inter iiosed. as a spacing member between the leaf springs and the raised portion 5, of the bael: plate 3, is of such a character that it will readily fuse, in the event of the breaking out of a lire near the same and will thereby release the pressure of the springs against the wheels which bear against the jambs 2, and permit the lower sash to slide to closed position, if open, and thereby exclude the d "aft from the room until it is desirable to open the same to fight the fire.

(if course, it is to be understood that my invention may be applied to ordinary wooden sash, or to metal iflSll and that the si irings for engaging the friction members against the jamb may be of any suitable kind and that many other details of construction may be modified without departing from the principles of this invention. I therefore do Copies of this patent may be obtained for five cents each, by addressing the Commissioner not purpose limiting the patent to be granted on this application otherwise than necessitated by the prior art.

I claim as my invention:

1. ln a device of the class described an at taching plate bent outwardly at a point near its center to afford a raised port-ion thereon, oppositely directed leaf spring. secured upon the 'aised portion of the atta hing plate, friction rollers jonrnaled on the free ends of one of said leaf springs and normally forced. outwardly by the same, and a fusible member positioned intermediate the attaching plate and the leaf springs.

2. A device of the class described embracing a back plate adapted to fit closely in a recess in the side rail of a sash and having a raised portion at a point near the center of the same, a fusible member, a plurality of leaf springs, friction rollers journaled thereon and forced outwardly thereby, a. spacing member, and bolts extending through said spacing member, leaf springs, fusible member and attaching plate to securely bind the same together to afford a rigid construction.

3. A device of the class described embracing a back plate adapted to [it closely in a recess in the side rail of a sash and having a raised portion at a point near the center of the same, a fusible member, a leaf spring, friction rollers journaled thereon and forced outwardly thereby, and means rigidly scour-- ing said leaf spring, fusible member and attaching plate together.

4t. A device of the class described embracing a back plate, having a raised portion at a point near the center of the same, a fusible member, a plurality of leaf springs, friction rollers journaled thereon and forced outwardly thereby, a spacing member, and means rigidly securing said spacing member. leaf springs, fusible member and attaching plate together.

A device of the class ('lescribed embracing a back plate, having a raised portion at a point near the center of the same, a plurality of leaf Spllllg'S, a fusible spacing member disposed between the same and said raised portion, friction rollers jmirnaled thereon and forced outwardly thereby, a spacing plate, and bolts extending through said spacing plate, leaf springs, fusible spacing member and attaching plate and bind.- ing the sam together to afford a rigid construction.

in testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

JOHN B. GLQXVACKI.

l' i itnesses Cnanrns lV. IIILLS, J13, Gnoncn ll. Moonn.

of Patents,

Viashington, D. G. 

